Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Disclosure Accrued Expenses [Abstract]
Accrued payroll and related expenses	$ 34,212	$ 37,392
Standard Product Warranty Accrual, Current	24,528	17,593
Advanced customer deposits	46,104	42,960
Accrued warranty		17,593
Accrued product liability and workers compensation	15,329	13,290
Accrued customer rebates	21,354	23,901
Accrued agent commission	11,064	9,531
Accrued professional services	7,566	8,346
Other accrued expenses	27,041	17,919
Accrued expenses	$ 187,198	$ 170,932